Simple rule based ea

very simple rule 

buy rate 2 sl 1 if market reach 3 sl 2 market reach 4 sl 3 sl hit reverse trade open too with same 1:1 trail sl system

if sl hit reverse trade open with same sl trail function 

1 input open trade with buy or sell option

2 sl in pip .............xyz

3 lot size ............. xyz

4 distance from sl when sl trail one step [main point]

Iam buying in rate of 2 my sl is 1 market reach 3 my sl is 2 market reach 4 my sl is 3 market reach 5 my sl is 4 -if sl hit reverse trade open

with same sl trail 4 sl hit open trade sell 4 with 5 sl 3 sl 4 I hope every thing is clear .